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replace malloc with calloc

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malloc: allocate a block of memory, the contents of the block are undefined.
calloc: allocate a block of memory for an array of num elements and initializes all its bits to zero.

Signed-off-by: yechunliang <yechunliangcn@163.com>
This commit is contained in:
yechunliang 2018-04-05 19:57:13 +08:00 committed by Jack Ren
parent 9aa9a77457
commit 2e2f02edeb
3 changed files with 3 additions and 5 deletions
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2
devicemodel/core/vmmapi.c
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@ -118,7 +118,7 @@ vm_open(const char *name)
int error, retry = 10; int error, retry = 10;
uuid_t vm_uuid; uuid_t vm_uuid;
ctx = malloc(sizeof(struct vmctx) + strlen(name) + 1); ctx = calloc(1, sizeof(struct vmctx) + strlen(name) + 1);
assert(ctx != NULL); assert(ctx != NULL);
assert(devfd == -1); assert(devfd == -1);

3
devicemodel/hw/platform/rtc.c
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@ -1105,9 +1105,8 @@ vrtc_init(struct vmctx *ctx, int local_time)
time_t curtime; time_t curtime;
struct inout_port rtc_addr, rtc_data; struct inout_port rtc_addr, rtc_data;
vrtc = malloc(sizeof(struct vrtc)); vrtc = calloc(1, sizeof(struct vrtc));
assert(vrtc != NULL); assert(vrtc != NULL);
memset(vrtc, 0, sizeof(struct vrtc));
vrtc->vm = ctx; vrtc->vm = ctx;
ctx->vrtc = vrtc; ctx->vrtc = vrtc;

3
devicemodel/tools/acrntrace/acrntrace.c
View File

@ -340,12 +340,11 @@ int main(int argc, char *argv[])
/* how many cpus */ /* how many cpus */
pcpu_num = get_cpu_num(); pcpu_num = get_cpu_num();
reader = malloc(sizeof(reader_struct) * pcpu_num); reader = calloc(1, sizeof(reader_struct) * pcpu_num);
if (!reader) { if (!reader) {
pr_err("Failed to allocate reader memory\n"); pr_err("Failed to allocate reader memory\n");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
memset(reader, 0, sizeof(reader_struct) * pcpu_num);
/* create dir for trace file */ /* create dir for trace file */
if (create_trace_file_dir(trace_file_dir)) { if (create_trace_file_dir(trace_file_dir)) {